Word Study
overconfidence
CIDE DICTIONARY
overconfidence, n.
Excessive confidence; too great reliance or trust. [1913 Webster]
THESAURUS
overconfidence
arrogance, assurance, assuredness, belief, brashness, brass, brazen boldness, certitude, cheek, chutzpah, cocksureness, confidence, confidentness, conviction, courage, faith, gall, heroics, hubris, improvidence, imprudence, impudence, indiscretion, injudiciousness, insolence, overboldness, overcarelessness, oversureness, overweening, overweeningness, poise, pomposity, positiveness, pride, rashness, security, self-assurance, self-confidence, self-importance, self-reliance, settled belief, subjective certainty, sureness, surety, temerariousness, temerity, trust, unchariness, unwarinessROGET THESAURUS
overconfidence
Rashness
N rashness, temerity, want of caution, imprudence, indiscretion, overconfidence, presumption, audacity, precipitancy, precipitation, impetuosity, levity, foolhardihood, foolhardiness, heedlessness, thoughtlessness, carelessness, desperation, Quixotism, knight-errantry, fire eating, gaming, gambling, blind bargain, leap in the dark, leap of faith, fool's paradise, too many eggs in one basket, desperado, rashling, madcap, daredevil, Hotspur, fire eater, bully, bravo, Hector, scapegrace, enfant perdu, Don Quixote, knight-errant, Icarus, adventurer, gambler, gamester, dynamitard, boomer, rash, incautious, indiscreet, imprudent, improvident, temerarious, uncalculating, heedless, careless, without ballast, heels over head, head over heels, giddy, wanton, reckless, wild, madcap, desperate, devil-may-care, hot-blooded, hotheaded, hotbrained, headlong, headstrong, breakneck, foolhardy, harebrained, precipitate, impulsive, overconfident, overweening, venturesome, venturous, adventurous, Quixotic, fire eating, cavalier, janty, jaunty, free and easy, off one's guard, post haste, a corps perdu, hand over head, tete baissee, headforemost, happen what may, come what may, neck or nothing, the devil being in one, non semper temeritas est felix, paucis temeritas est bono multis malo.For further exploring for "overconfidence" in Webster Dictionary Online